Very nice result (and "fun" movie also).
I've been looking out for formula of how tweaking white point : converting (R0,G0,B0) with white point at (x0,y0) to (R1,G1,B1) with a white point at (x1,y1), but without success for now...
As you're talking about it, do you know where i can find it, or is it possible you could provide the formula which gives (R1,G1,B1) from [(R0,G0,B0),(x0,y0),(x1,y1)] ?
Actualy, i'm still in a "gathering information" stage.
How to convert white points
Re: HDR -> SDR tonemapping for DGDecodeNV
What is its significance for practical HDR->SDR conversion?
Re: HDR -> SDR tonemapping for DGDecodeNV
I have no idea, i want to experiment several things, when you see fig.37 of BT.2390, it seems that white point scaling is a possibilty, so that's why i'm trying to figure out what is the formula. BT.709 define a fixed white point, in HDR, there is a white point information, so maybe it can be useful, maybe not...
As i said, i'm for now gathering all the informations i can, and after, i have some experiments i want to do.
Even if (i think) they'll probably fail...
HDR seems to be a total mess, with a lot of aspects without any specification, with a "deals with it, and... do your best !" situation.
So, experiment... experiment... experiment...
As i said, i'm for now gathering all the informations i can, and after, i have some experiments i want to do.
Even if (i think) they'll probably fail...
HDR seems to be a total mess, with a lot of aspects without any specification, with a "deals with it, and... do your best !" situation.
So, experiment... experiment... experiment...
Re: How to convert white points
If you figure anything out be sure to let us know.
Re: How to convert white points
Great links, thanks!
Re: How to convert white points
jspdr
Maybe if you tell us what experiments you are planning, we might be able to give more information.
Is it video encoding, digital photography?
Maybe if you tell us what experiments you are planning, we might be able to give more information.
Is it video encoding, digital photography?